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// Copyright (c) Microsoft Corporation. All rights reserved.
//
using System;
using System.Collections.Generic;
using System.Configuration;
using System.IO;
using System.Reflection;
using System.Xml;
using System.Xml.XPath;
namespace Microsoft.Ddue.Tools {
public abstract class BuildComponent : IDisposable {
protected BuildComponent (BuildAssembler assembler, XPathNavigator configuration) {
this.assembler = assembler;
WriteMessage(MessageLevel.Info, "Instantiating component.");
}
public abstract void Apply (XmlDocument document, string key);
public virtual void Apply (XmlDocument document) {
Apply(document, null);
}
public virtual void Dispose () {
// override to do something
}
// shared data
private BuildAssembler assembler;
public BuildAssembler BuildAssembler {
get {
return(assembler);
}
}
//private MessageHandler handler;
private static Dictionary<string,object> data = new Dictionary<string,object>();
protected static Dictionary<string,object> Data {
get {
return(data);
}
}
// component messaging facility
protected void OnComponentEvent (EventArgs e) {
assembler.OnComponentEvent(this.GetType(), e);
}
protected void WriteMessage (MessageLevel level, string message) {
if (level == MessageLevel.Ignore) return;
MessageHandler handler = assembler.MessageHandler;
if (handler != null) handler(this.GetType(), level, message);
}
}
public enum MessageLevel {
Ignore, // don't show at all
Info, // informational message
Warn, // a minor problem occured
Error // a major problem occured
}
public delegate void MessageHandler (Type component, MessageLevel level, string message);
}
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